US2024322328A1PendingUtilityA1

Drive Battery for a Motor Vehicle and Motor Vehicle Comprising Such a Drive Battery

Assignee: BAYERISCHE MOTOREN WERKE AGPriority: Jul 23, 2021Filed: Sep 2, 2021Published: Sep 26, 2024
Est. expiryJul 23, 2041(~15 yrs left)· nominal 20-yr term from priority
H01M 50/213B60L 50/66B60L 50/64H01M 2220/20B60Y 2306/01B60K 2001/0438B60K 1/04H01M 50/249H01M 10/625H01M 10/613Y02E60/10H01M 50/242
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Claims

Abstract

A drive battery for a motor vehicle has a drive battery housing with a cover wall and a base wall. A battery cell layer with a plurality of battery cells and a supporting layer, which is arranged between the battery cell layer and the base wall, are arranged in the drive battery housing. The battery cell layer further has a battery cell position supporting structure which forms a collision load path in the vertical direction of the drive battery.

Claims

exact text as granted — not AI-modified
1 .- 12 . (canceled) 
     
     
         13 . A drive battery for a motor vehicle, comprising:
 a drive battery housing having a top wall and a bottom wall;   a battery cell layer with a multiplicity of battery cells, which multiplicity of battery cells are arranged vertically and next to one another; and   a supporting layer which is arranged between the battery cell layer and the bottom wall, wherein the battery cell layer and the supporting layer are arranged in the drive battery housing, and   the battery cell layer has a battery cell layer support structure which forms a collision load path in a vertical direction of the drive battery.   
     
     
         14 . The drive battery according to  claim 13 , wherein
 the battery cell layer support structure is formed between the battery cells and, in an event of a collision load, is supported in the vertical direction on the support layer and on the top wall, and   the battery cell layer support structure substantially fills an intermediate space between the battery cells.   
     
     
         15 . The drive battery according to  claim 13 , wherein
 the battery cell layer support structure is formed such that a collision load in the vertical direction, at a beginning of a collision, acts only on the battery cell layer support structure and not on the battery cells, and   the battery cell layer support structure extends above the battery cells.   
     
     
         16 . The drive battery according to  claim 13 , wherein
 the battery cell layer support structure, in the vertical direction of the drive battery, has a higher strength and/or stiffness than the battery cells.   
     
     
         17 . The drive battery according to  claim 13 , wherein
 the support layer is plastically deformable at a lower force level than the battery cell layer support structure.   
     
     
         18 . The drive battery according to  claim 13 , wherein
 the battery cell layer support structure is of single-piece form or at least consists essentially of single-piece battery cell layer support structure parts which are each configured to receive a plurality of battery cells, and   the battery cell layer support structure has receiving spaces for receiving a respective battery cell in a form-fitting manner.   
     
     
         19 . The drive battery according to  claim 13 , wherein
 the battery cells are pressed into the battery cell layer support structure, and/or   the battery cell layer support structure has deformable projections which are elastically and/or plastically deformable when introducing the battery cells into the battery cell layer support structure.   
     
     
         20 . The drive battery according to  claim 13 , wherein the battery cells are glued into the battery cell layer support structure. 
     
     
         21 . The drive battery according to  claim 13 , wherein
 the battery cell layer support structure is formed from a plastic or a metallic material, and   the battery cell layer support structure is extruded.   
     
     
         22 . The drive battery according to  claim 13 , further comprising:
 a heat exchanger for controlling the temperature of the battery cells formed in the battery cell layer support structure.   
     
     
         23 . The drive battery according to  claim 13 , wherein
 the drive battery is configured for fitting to a floor subassembly of a body of the motor vehicle, wherein the bottom wall at least partially forms an undertray of the motor vehicle.   
     
     
         24 . A motor vehicle, comprising:
 a body; and   a drive battery according to  claim 13 ,   wherein   the device battery is fitted to a floor subassembly of the body from below,   the drive battery is configured, and connected to the body of the motor vehicle, such that the drive battery increases body stiffness for driving operation of the motor vehicle, and   the drive battery increases body stiffness in an event that the motor vehicle is subjected to a collision load.

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